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(11)

EP 2 041 701 A1

(12)

(43) Date of publication: 01.04.2009 Bulletin 2009/14 (21) Application number: 07788805.5 (22) Date of filing: 13.07.2007

(51) International Patent Classification (IPC):  G06K 19/04(2006.01) G06K 19/077(2006.01) G06K 19/07(2006.01) (86) International application number: PCT/FI2007/050430 (87) International publication number: WO 2008/006947 (17.01.2008 Gazette 2008/03)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 13.07.2006 US 830330 P 31.01.2007 US 898402 P (71) Applicant: Confidex OY 33230 Tampere (FI)	(72) Inventors: RITAMÄKI, Matti FI-37100 Nokia (FI) HANHIKORPI, Marko FI-33960 Pirkkala (FI) AHOKAS, Heikki FI-33210 Tampere (FI) KYTÖLÄ, Lari FI-41340 Laukaa (FI) (74) Representative: Kaukonen, Juha Veikko  Kolster Oy Ab, Iso Roobertinkatu 23 00120 Helsinki 00120 Helsinki (FI)